Electrical Work; Safety And Monitoring Devices; Conduct During Operation - Wilo EMU FA+T Einbau- Und Betriebsanleitung

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2.3. Electrical work

ELECTRICAL hazard!
Incorrectly performed electrical work can
result in fatal injury! This work may only be
carried out by a qualified electrician.
BEWARE of moisture!
Moisture penetrating the cable will damage
both the pump and the cable. Never immerse
the cable end in fluid and always protect it
from moisture. Unused wires must be insu-
lated!
The pumps are operated with alternating or
three-phase current. The governing national
directives, standards and regulations (e.g. VDE
0100) as well as the requirements of the local
energy supply company must be observed.
The person operating the pump must know
where it is supplied with power and how to cut
off the supply. A motor protection switch must
be installed by the customer for three-phase AC
motors. It is advisable to install a residual-current
device (RCD). If there is a possibility that people
can come into contact with the pump and the
fluid (for example on construction sites), the
connection must be equipped with an additional
residual-current device (RCD).
The section entitled 'Electrical connection' must
be observed when connecting the product. The
technical specifications must be observed strictly.
The pumps must always be grounded.
If the pump has been switched off by a protec-
tive device, it must not be switched on again
until the error has been corrected.
When the pump is connected to the electrical
control panel, particularly when electronic devices
such as soft start-up control or frequency con-
verters are used, the switchgear manufacturer's
specifications must be followed to comply with
the electromagnetic compatibility (EMC) require-
ments. Special separate shielding measures (e.g.
shielded cables, filters, etc.) may be necessary for
the power supply and control cables.
Connections may only be made providing the
switchgear meets the harmonised EU standards.
Mobile radio equipment may cause malfunc-
tions in the system.
BEWARE of electromagnetic radiation!
Electromagnetic radiation can pose a fatal
risk for people with cardiac stimulators. Put
up appropriate signs and make sure anyone
affected is aware of the danger!

2.4. Safety and monitoring devices

The motor may be fitted with the following
monitoring devices, depending on configuration/
customer request and motor size:
• Motor compartment monitoring
48
• Thermal motor monitoring as temperature limit
function (1-circuit temperature monitor) or
temperature control and limit function (2-circuit
temperature monitor)
• Monitoring of the sealing chamber
• Monitoring of the leakage chamber
• Thermal motor bearing monitoring
• Monitoring of the terminal room
For precise information about which monitor-
ing devices are fitted, please refer to your order
confirmation or the technical data sheet.
These monitoring devices must be connected by
an electrician and checked to ensure that they
function correctly before commissioning.
Personnel must be informed about the installed
systems and how they work.
CAUTION!
Never operate the pump if the monitoring
devices have been removed or damaged, or if
they do not work.

2.5. Conduct during operation

When operating the pump, always follow the
locally applicable laws and regulations for work
safety, accident prevention and handling elec-
trical machinery. To help ensure safe working
practice, the responsibilities of employees should
be clearly specified by the operator. All personnel
are responsible for ensuring that regulations are
observed.
The pump is equipped with moving parts. During
operation, these parts rotate in order to pump the
fluid. Certain substances in the fluid can result in
very sharp edges forming on the moving parts.
WARNING: rotating parts!
The rotating parts can crush and sever limbs.
Never reach into the hydraulics or touch the
rotating parts when the machine is in opera-
tion.
• Before performing maintenance or repairs,
switch off the pump, disconnect it from the
mains and secure it against being switched on
again without authorization.
• Allow the rotating parts to come to a stand-
still!
WILO SE 07-2015 V05 DIN A4
SAFETY